package com.example.esskill.config;

import lombok.Data;
import lombok.extern.slf4j.Slf4j;
import org.apache.http.HttpHost;
import org.apache.http.auth.AuthScope;
import org.apache.http.auth.UsernamePasswordCredentials;
import org.apache.http.client.CredentialsProvider;
import org.apache.http.impl.client.BasicCredentialsProvider;
import org.elasticsearch.client.RestClient;
import org.elasticsearch.client.RestClientBuilder;
import org.elasticsearch.client.RestHighLevelClient;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

/**
 * ClassName: ElasticsearchConfig <br/>
 * Description: <br/>
 * date: 2024/2/4 16:20<br/>
 *
 * @author LXC<br />
 * @since JDK 1.8
 */
@Slf4j
@Data
@Configuration
@ConfigurationProperties(prefix = "elasticsearch")
public class ElasticsearchConfig {

    // es host ip 地址（集群）
    private String hosts;
    // es用户名
   /* private String userName;
    // es密码
    private String password;*/
    // es 请求方式
    private String scheme;
    // es集群名称
    private String clusterName;
    // es 连接超时时间
    private int connectTimeOut;
    // es socket 连接超时时间
    private int socketTimeOut;
    // es 请求超时时间
    private int connectionRequestTimeOut;
    // es 最大连接数
    private int maxConnectNum;
    // es 每个路由的最大连接数
    private int maxConnectNumPerRoute;


    /**
     * 如果@Bean没有指定bean的名称，那么这个bean的名称就是方法名
     */
    @Bean(name = "restHighLevelClient")
    public RestHighLevelClient restHighLevelClient() {
        // 拆分地址
//        List<HttpHost> hostLists = new ArrayList<>();
//        String[] hostList = hosts.split(",");
//        for (String addr : hostList) {
//            String host = addr.split(":")[0];
//            String port = addr.split(":")[1];
//            hostLists.add(new HttpHost(host, Integer.parseInt(port), scheme));
//        }
//        // 转换成 HttpHost 数组
//        HttpHost[] httpHost = hostLists.toArray(new HttpHost[]{});

        // 此处为单节点es
        String host = hosts.split(":")[0];
        String port = hosts.split(":")[1];
        HttpHost httpHost = new HttpHost(host,Integer.parseInt(port));

        // 构建连接对象
        RestClientBuilder builder = RestClient.builder(httpHost);

        // 设置用户名、密码
        /*CredentialsProvider credentialsProvider = new BasicCredentialsProvider();
        credentialsProvider.setCredentials(AuthScope.ANY,new UsernamePasswordCredentials(userName,password));*/

        // 连接延时配置
        builder.setRequestConfigCallback(requestConfigBuilder -> {
            requestConfigBuilder.setConnectTimeout(connectTimeOut);
            requestConfigBuilder.setSocketTimeout(socketTimeOut);
            requestConfigBuilder.setConnectionRequestTimeout(connectionRequestTimeOut);
            return requestConfigBuilder;
        });
        // 连接数配置
        builder.setHttpClientConfigCallback(httpClientBuilder -> {
            httpClientBuilder.setMaxConnTotal(maxConnectNum);
            httpClientBuilder.setMaxConnPerRoute(maxConnectNumPerRoute);
           // httpClientBuilder.setDefaultCredentialsProvider(credentialsProvider);
            return httpClientBuilder;
        });

        return new RestHighLevelClient(builder);
    }
}
